101221002201 has 32 divisors (see below), whose sum is σ = 149345602560. Its totient is φ = 60468177600.

The previous prime is 101221002191. The next prime is 101221002203. The reversal of 101221002201 is 102200122101.

It is not a de Polignac number, because 101221002201 - 2⁷ = 101221002073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (101221002203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1160331 + ... + 1244511.

It is an arithmetic number, because the mean of its divisors is an integer number (4667050080).

Almost surely, 2^101221002201 is an apocalyptic number.

101221002201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

101221002201 is a deficient number, since it is larger than the sum of its proper divisors (48124600359).

101221002201 is a wasteful number, since it uses less digits than its factorization.

101221002201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84717.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 101221002201 its reverse (102200122101), we get a palindrome (203421124302).

The spelling of 101221002201 in words is "one hundred one billion, two hundred twenty-one million, two thousand, two hundred one".